Network Engineer - Washington, DC

Connexus Hub

$90K — $120K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Hands-on experience with enterprise Cisco networking (routing, switching, firewalls, 802.1X)
  • Current certification(s) such as CCNA or CCNP, maintained for at least 5 years
  • Must be a U.S. person eligible for a Public Trust (Tier 2) clearance.

Responsibilities

  • Operate, optimize, and secure various Cisco network environments.
  • Implement and maintain security controls aligned with NIST standards and Zero Trust principles.
  • Configure and manage network access control, routing, switching, and related technologies.
  • Conduct continuous monitoring and vulnerability assessments of network assets.
  • Harden devices in accordance with Cisco secure baselines; manage firmware and patching.
  • Maintain accurate network diagrams, configuration baselines, and SOPs; support ongoing monitoring.

Benefits

  • Hybrid work environment with on-site support in Washington, DC.
  • Opportunity to work with cutting-edge security frameworks such as Zero Trust and NIST standards.
Full Job Description
About the Role

Connexus Hub is hiring a Network Engineer to support the Congressional Budget Office (CBO) under the SENTRY IT Support BPA. The engineer provides engineering and operational support for CBO's Cisco-based enterprise network, enforcing Zero Trust principles, segmentation, and least-privilege access in accordance with NIST SP 800-53 and NIST SP 800-207.

Key Responsibilities
  • Operate, optimize, and secure CBO's Cisco core, distribution, access, and edge environments.
  • Implement and maintain network security controls aligned with NIST SP 800-53 (AC, CM, SC, AU) and Zero Trust (NIST SP 800-207).
  • Configure and manage 802.1X port-based network access control, routing, switching, VLANs, DNS, DHCP, and VPNs.
  • Forward device logs to the enterprise SIEM; conduct continuous monitoring and vulnerability assessments (NIST RMF).
  • Harden devices to Cisco secure baselines; perform firmware/patch management and root-cause analysis.
  • Maintain network diagrams, configuration baselines, and SOPs; support 24/7 monitoring.


Minimum Qualifications
  • Hands-on enterprise Cisco network engineering experience (routing, switching, firewalls, 802.1X).
  • Current relevant certification(s) such as CCNA or CCNP, maintained for at least 5 years.
  • U.S. person able to obtain and maintain a Public Trust (Tier 2) clearance (background check via Capitol Police).


Location
  • Washington, DC (hybrid). On-site support at the CBO Ford House Office Building and associated data center facilities.

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